It's not really about the competition. Your biggest challenge in a race is yourself. You're often racing against time. You're frequently running everything through your mind. You're always competing against preconceived ideas. It's not really the person next to you that you worry about.

I love to run, but training can be hard, especially with a family and a crazy travel schedule. I often do sprints with my kids, where they bike and I run along side them so we can 'race' each other for a quarter-mile or shorter repeats.

I love KIND bars. My favorites are coconut and almond and the dark chocolate and sea salt because staying fueled helps keep me from getting sick or injured. Bananas have also made a great comeback in my life. My kids eat them all the time on the go, which has inspired my go-to pre-run morning meal of peanut butter and banana on toast.

Tennis is interesting because the women are almost more popular than the men. In the U.S. Open, women even get exactly the same money as the men.

I'm really conscious of the amount of food I eat, but I don't deny myself anything. For example, I have a really big sweet tooth. At the end of the night, if I'm craving ice cream, I might not have the bowl that I would have when I was a kid, but I'll put a couple of scoops in a coffee mug, and I'll eat it slowly, and I enjoy every moment of it.

I was a die-hard, obsessed fan of Michael Jordan. I'd take his posters with me to away meets, I'd walk out on the deck in my Air Jordans before I swam, I'd write 23 on my cap. I'm just a huge Jordan fan.

I enjoyed every bit of my swimming career. I think that's the most important advice - to enjoy what you do